In the first tournament in Subotica, Sax, Short, and Speelman qualified. Lubomir Kavalek withdrew after six rounds; his results are not included in the totals for the other players. Robert Hübner was invited, but declined to participate. As a result, Ribli had a free day during the last round. To show his displeasure, he refused to take part in a playoff against Tal, which could have been important, if a reserve spot had opened up in the Candidates Tournament.

Viktor Korchnoi emerged as winner of the last tournament in Zagreb, ahead of Jaan Ehlvest and Yasser Seirawan. In an extra playoff in Havana in November, Nikolić took the place as reserve for the Candidates Tournament with 6 points, ahead of Granda (4) and Nogueiras (2). No reserve was needed, however.

In addition to nine players from the Interzonals, the top four of the previous Candidates Tournament (Sokolov, Timman, Vaganian, and Yusupov) qualified directly for this tournament. The Canadian organizers of the preliminary matches (which were held in Saint John, New Brunswick) nominated one player, (Spraggett). Finally, Karpov, the challenger in the previous cycle, was seeded into the quarterfinals.

Although still a Soviet citizen, Kasparov refused to play under the flag of the Soviet Union. Instead, he wanted to use the Russian flag; not the flag of the RSFSR, but the old tri-color—which, incidentally, would be re-adopted after the collapse of the Soviet Union a year later. Kasparov was indeed allowed to play with a small Russian tri-color at the table.[3]